205768250

素因数分解:

$2^1\times 5^3\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 398331648

約数和(自身を除く): 192563398

約数列:

[1, 2, 5, 10, 25, 50, 61, 103, 122, 125, 131, 206, 250, 262, 305, 515, 610, 655, 1030, 1310, 1525, 2575, 3050, 3275, 5150, 6283, 6550, 7625, 7991, 12566, 12875, 13493, 15250, 15982, 16375, 25750, 26986, 31415, 32750, 39955, 62830, 67465, 79910, 134930, 157075, 199775, 314150, 337325, 399550, 674650, 785375, 823073, 998875, 1570750, 1646146, 1686625, 1997750, 3373250, 4115365, 8230730, 20576825, 41153650, 102884125, 205768250]

約数ペア:

[(1, 205768250), (2, 102884125), (5, 41153650), (10, 20576825), (25, 8230730), (50, 4115365), (61, 3373250), (103, 1997750), (122, 1686625), (125, 1646146), (131, 1570750), (206, 998875), (250, 823073), (262, 785375), (305, 674650), (515, 399550), (610, 337325), (655, 314150), (1030, 199775), (1310, 157075), (1525, 134930), (2575, 79910), (3050, 67465), (3275, 62830), (5150, 39955), (6283, 32750), (6550, 31415), (7625, 26986), (7991, 25750), (12566, 16375), (12875, 15982), (13493, 15250)]